Package org.teiid.query.sql.lang

Class SubquerySetCriteria

java.lang.Object

org.teiid.query.sql.lang.Criteria

org.teiid.query.sql.lang.PredicateCriteria

org.teiid.query.sql.lang.AbstractSetCriteria

org.teiid.query.sql.lang.SubquerySetCriteria

All Implemented Interfaces:

Cloneable, PredicateCriteria.Negatable, SubqueryContainer<QueryCommand>, LanguageObject, ContextReference, Expression

public class SubquerySetCriteria
extends AbstractSetCriteria
implements SubqueryContainer<QueryCommand>, ContextReference

A criteria which is true is the expression's value is a member in a list of values returned from a subquery. This criteria can be represented as "<expression> IN (SELECT ...)".

Nested Class Summary

Nested classes/interfaces inherited from class org.teiid.query.sql.lang.PredicateCriteria

PredicateCriteria.Negatable

Nested classes/interfaces inherited from interface org.teiid.query.sql.LanguageObject

LanguageObject.Util

Nested classes/interfaces inherited from interface org.teiid.query.sql.lang.SubqueryContainer

SubqueryContainer.Evaluatable<T extends Command>

Constructor Summary

Constructors

Constructor	Description
SubquerySetCriteria()	Constructor for SubquerySetCriteria.
SubquerySetCriteria(Expression expression, QueryCommand subCommand)

Method Summary

Modifier and Type	Method	Description
void	acceptVisitor(LanguageVisitor visitor)	Method for accepting a visitor.
SubquerySetCriteria	clone()	Deep copy of object.
boolean	equals(Object obj)	Override equals() method.
QueryCommand	getCommand()	Get the subquery command used to produce the values for this SetCriteria.
String	getContextSymbol()
ExistsCriteria.SubqueryHint	getSubqueryHint()
int	hashCode()	Get hash code.
void	setCommand(QueryCommand command)	Set the subquery command (either a SELECT or a procedure execution).
void	setSubqueryHint(ExistsCriteria.SubqueryHint subqueryHint)

Methods inherited from class org.teiid.query.sql.lang.AbstractSetCriteria

getExpression, isNegated, negate, setExpression, setNegated

Methods inherited from class org.teiid.query.sql.lang.Criteria

applyDemorgan, combineCriteria, combineCriteria, combineCriteria, getType, separateCriteriaByAnd, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SubquerySetCriteria

public SubquerySetCriteria()

Constructor for SubquerySetCriteria.

SubquerySetCriteria

public SubquerySetCriteria(Expression expression,
                           QueryCommand subCommand)

Method Detail

getSubqueryHint

public ExistsCriteria.SubqueryHint getSubqueryHint()

setSubqueryHint

public void setSubqueryHint(ExistsCriteria.SubqueryHint subqueryHint)

getContextSymbol

public String getContextSymbol()

Specified by:

getContextSymbol in interface ContextReference

setCommand

public void setCommand(QueryCommand command)

Set the subquery command (either a SELECT or a procedure execution).

Specified by:

setCommand in interface SubqueryContainer<QueryCommand>

Parameters:

command - Command to execute to get the values for the criteria

getCommand

public QueryCommand getCommand()

Get the subquery command used to produce the values for this SetCriteria.

Specified by:

getCommand in interface SubqueryContainer<QueryCommand>

Returns:

Command Command to execute

acceptVisitor

public void acceptVisitor(LanguageVisitor visitor)

Description copied from interface: LanguageObject

Method for accepting a visitor. It is the responsibility of the language object to call back on the visitor.

Specified by:

acceptVisitor in interface LanguageObject

Parameters:

visitor - Visitor being used

hashCode

public int hashCode()

Get hash code. WARNING: The hash code is based on data in the criteria. If data values are changed, the hash code will change - don't hash this object and change values.

Overrides:

hashCode in class Object

Returns:

Hash code

equals

public boolean equals(Object obj)

Override equals() method.

Overrides:

equals in class Object

Parameters:

obj - Other object

Returns:

True if equal

clone

public SubquerySetCriteria clone()

Deep copy of object. The values Iterator of this object will not be cloned - it will be null in the new object (see #setValueIterator setValueIterator}).

Specified by:

clone in interface LanguageObject

Specified by:

clone in class AbstractSetCriteria

Returns:

Deep copy of object